<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script>
        /**
         *  跟踪程序执行的过程
         */
        var i=0;
        while(i<=5){
            // alert(i);
            // console.log(i);
            console.log('我们都是好孩子'+(i+1));
            i++;
        }
    </script>
</head>
<body>
    
</body>
</html>